shmem: unify regular and tiny shmem

tiny-shmem shares most of its 130 lines of code with shmem and tends to
break when particular bits of shmem get modified.  Unifying saves code and
makes keeping these two in sync much easier.

before:
  14367	    392	     24	  14783	   39bf	mm/shmem.o
    396      72       8     476	    1dc	mm/tiny-shmem.o

after:
  14367	    392	     24	  14783	   39bf	mm/shmem.o
    412	     72       8     492	    1ec	mm/shmem.o tiny

Signed-off-by: Matt Mackall <mpm@selenic.com>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 4 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 52847eec7398..315a6114bf87 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -838,10 +838,6 @@ config RT_MUTEXES
         boolean
         select PLIST
 
-config TINY_SHMEM
-        default !SHMEM
-        bool
-
 config BASE_SMALL
         int
         default 0 if BASE_FULL